[Bug 702595] New: Reverse playback not working for mpeg2 ts files

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=702595
  GStreamer | gst-plugins-bad | 1.x

           Summary: Reverse playback not working for mpeg2 ts files
    Classification: Platform
           Product: GStreamer
           Version: 1.x
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: grandocap at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


I'm working on playspeed support related to mpeg-ts using latest GStreamer-1.X
code on Ubuntu 12.4.  I have been testing with the GStreamer playspeed tutorial
- "Basic tutorial 13: Playback speed"
(http://docs.gstreamer.com/display/GstSDK/Basic+tutorial+13%3A+Playback+speed).
(See Bug 694369 for code attachment and a sample mpeg2 ts file).

The tutorial fails when attempting to switch to a reverse playspeed.  To
demonstrate issue, enter "S" to switch from 1x to 2x playback speed.  Then
enter "D" option to change direction from 2x to -2x rate 

I get the following error:
 GStreamer-CRITICAL **: gst_segment_clip: assertion `segment->format == format'
failed
0:00:39.902699443 11915 0xb5d144f0 WARN                mpeg2dec
gstmpeg2dec.c:474:gst_mpeg2dec_discard_buffer: Could not find buffer 1822, will
be leaked until next reset

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